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<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../17-mergeObject.js"></script>
</head>

<body>
  <script>
    const object = {
      a: [{ x: 2 }, { y: 4 }],
      b: 1
    }
    const other = {
      a: { z: 3 },
      b: [2, 3],
      c: 'foo'
    }
    console.log(mergeObject(object, other));

  </script>
</body>

</html>